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I have two zone heating/cooling and the upstairs heat

Customer Question

I have two zone...

I have two zone heating/cooling and the upstairs heat stopped working in the middle of the night, didn't notice until 7AM. Thermostat not showing any #'s. Changed the batteries, no luck. Checked the fuse box, both in the on position. Downstairs working fine. Went into the attic and there is a little round window in the unit like the basement furnace for the pilot light.

Contractor's Assistant: Did you double-check the thermostat's settings? And what about the filters?

Nothing showing on the thermostat screen Totally blank. Have pushed the 'i' button to see the current temperature but nothing showing. Will check the filter, but can't hear the unit running. Not sure how a filter would kick it on but will change it. I'm in a rental house and haven't changed the filter for several months. I did switch the round blue button that allows the gas flow off and then on again.

Contractor's Assistant: Do you plan on doing the work yourself?

Possibly. can ask the owner to come over but would like to handle it myself. he's at work.

Contractor's Assistant: Anything else we should know to help you best?

Why isn't the thermostat showing anything on its screen? wouldn't the batteries at least have affected that?

That would be great. I have an Aprilaire 8600 thermostat. It heats my house on 2 zones. Yesterday, I put in on an override to increase the heat. It worked great. But then I tried to undo the hold and … read more

I have no heat downstairs in a 2 zone system with a Honeywell EMM-3 Minizone panel that is flashing orange. The furnace is a Bryant 310JAV which is flashing code 13 limit lockout switch reset in 3 hou… read more

Forced Hot Air System; Blower motor working, but air IS NOT WARM now. Heat works upstairs (worked fine last night and this AM), but not downstairs-2 zone system; already changed batteries on downstair… read more

I have zoned thermostats, one downstairs, one upstairs. Honeywell T8132C model. Furnace in the attic. Just recently, when I turn on the thermostat downstairs, the air (heat in this case) blows upstair… read more

We have a 10-year old Carrier hvac system with gas heat. The heat is working upstairs but not downstairs. It blows air downstairs when the thermostat is in the "ON" position but not in the "AUTO" posi… read more

We have two thermostats in our hosue, both different models, one upstairs one downstairs. The batteries in the upstairs thermostat, a Honeywell Chronotherm III, model T8600(C1014?), recently died, wit… read more

I have a 2 zone air & heating system with 2 Honeywell programmable thermostats. The one in the downstairs zone shows "batt low" even after replacing the batteries. I am assuming that the stat needs re… read more

my thermostat is set at 73 both for upstairs and downstairs. Upstairs is warm and cozy 77 degrees but downstairs remains very cold, thermostat is reading a temparature of 64. What am I doing wrong?… read more

I have 2 zones in the house. One zone upstairs is set to 65 and it is now 76 upstairs. The downstairs zone is set to 65 and it registers 63. The furnance is working but it seems like the heat is only … read more

HOME THERMOSTAT Honeywell RTH110B Not listed as options and unable to locate operational booklet. A/C failed to function off the furnace, so I changed the batteries and now there is nothing showing on… read more

I'm not sure which Honeywell Thermostat I have, but was wondering if there is a reset button?? The heater just stopped working at some point in the night and I'm not sure why. I have replaced all filt… read more

I have a White Rodgers 1F80-51 digital thermostast which was working fine, I was out of town for a week and when I came back the display was blank, nothing shows, I changed the batteries and still I d… read more

My thermostat is 2 years old. It stopped working. The screen went blank, except for the ditigal outline of the screen. It never had batteries. I took the cover off and put two batteries. The thermosta… read more

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.